Keyboard



FIG. 1 is a top, front and right side perspective view of a first embodiment of a keyboard showing my new design;

FIG. 2 is a top, rear and left side perspective view of FIG. 1;

FIG. 3 is a front elevational view of FIG. 1;

FIG. 4 is a rear elevational view of FIG. 1;

FIG. 5 is a left side view of FIG. 1;

FIG. 6 is a right side view of FIG. 1;

FIG. 7 is a top plan view of FIG. 1;

FIG. 8 is a bottom plan view of FIG. 1;

FIG. 9 is a top, front and right side perspective view of a second embodiment of the keyboard;

FIG. 10 is a top, rear and left side perspective view of FIG. 9;

FIG. 11 is a front elevational view of FIG. 9;

FIG. 12 is a rear elevational view of FIG. 9;

FIG. 13 is a left side view of FIG. 9;

FIG. 14 is a right side view of FIG. 9;

FIG. 15 is a top plan view of FIG. 9; and,

FIG. 16 is a bottom plan view of FIG. 9.

The broken lines in the drawings illustrate portions of the keyboard which form no part of the claimed design. 

CLAIM The ornamental design for a keyboard, as shown and described. 